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Patient-specific cardiovascular models

A digital model of every patient, built from their own scans.

LivGemini combines artificial intelligence with physics to turn routine medical images into quantitative models of each patient's cardiovascular system. Our first product, VenusX, applies this to the thoracic aorta.

Why we exist

Images show the anatomy. Physics shows how it behaves.

  • For clinicians

    Quantitative 3D models from the scans you already acquire, and model-based estimates of what the images cannot show.

  • For research teams

    A way to study anatomy, blood flow and tissue biomechanics on real patient cohorts, with methods that are published and traceable.

  • For device makers

    Patient-specific anatomies and simulations to understand how devices meet real anatomies, before and after they reach patients.

The technology

AI for the anatomy. Physics for flow and mechanics.

Each model is built in three layers. We keep apart what is measured on the images, what is estimated by a model, and what the clinician decides.

  1. Sagittal CT slice with the vessel segmentation mask overlaid in lilacAI segmentation · CT
    01AI · anatomy

    Reconstruct the anatomy

    Neural networks turn the patient's scan into a 3D model of the anatomy. A clinician reviews it before anything is computed on top.

  2. Patient-specific 3D aorta coloured by local radius, from narrow in blue to dilated in coralMorphology · local radius
    02Morphology

    Assess its shape

    Dimensions, curvature, volumes and motion describe each anatomy in numbers, and place it among other patients.

  3. Simulated velocity streamlines in a patient-specific aortic arch at peak systoleCFD · velocity streamlines
    03Physics · simulation

    Simulate what images cannot show

    Physics-based models estimate blood flow, the biomechanics of tissues and walls, or the effect of a procedure. AI-built reduced-order models make them fast enough for a workstation.

Beyond one product

The same method, across the cardiovascular system.

In a product today

Thoracic aorta: segmentation, centerline and diameters from CT in VenusX Sizing. Flow estimates in VenusX Flow, in development.

In research

Cardiac anatomy and motion, aneurysm growth from shape, endovascular planning, wall and valve mechanics, and virtual patient populations for device testing.

Read how the models are built →
First application · VenusX

The thoracic aorta, from CT to report.

VenusX is a multiplatform desktop application for radiologists, surgeons and cardiologists who assess the thoracic aorta. It runs on Windows and macOS, processes images on the local computer and keeps the user in control of every automatic step.

Explore VenusX
VenusX Sizing on an anonymised thoracic CT: 3D aorta coloured by region, straightened CT, diameter profile and orthogonal cross-sectionVenusX 0.1 · anonymised CT
VenusX Sizing: the aorta split into ascending, arch and descending regions, with diameters measured on sections perpendicular to the centerline.

VenusX is not CE marked or FDA cleared. It is available for research use only and must not be used for clinical decision-making.

Why trust us

Published science, a certified process.

Our methods come from years of research in computational biomechanics. We state what is available, what is in development and what is still research.

Peer-reviewed papers behind the methods
9
Certified quality management system
ISO 13485
Hospitals in research collaborations
3
Research and technology collaborations
  • CHU DijonClinical research collaboration
  • Policlinico Tor VergataClinical research collaboration
  • Massy HospitalClinical research collaboration
  • ConfinisRegulatory partner
Publications and evidence →
“It is a pleasure to collaborate with LivGemini and continue establishing new, innovative techniques for diagnosing and predicting aortic pathologies.”
Portrait of Prof. Jean-Philippe Verhoye MDProf. Jean-Philippe Verhoye MDVice-President, French Society of Cardiovascular and Thoracic Surgery · LivGemini clinical advisor
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